Please help with solving!

Gonzal mpany had the following inventory information for the year ending December 31: $420 Units Unit Cost Total Beginning inventory 35 S12 Purchases: March 20 11 220 June 15 50 10 500 September 28 45 8 360 Cost of Goods Available for Sale 150 $1,500 On December 31, Gonzales Company had an ending inventory of 3 units. They use a periodic inventory system to compute the cost of ending inventory Required: Using weighted average: (a) Compute the cost of ending inventory (b) Compute the cost of goods sold Cost of ending inventory Cost of goods sold: 50 $0 2